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Finding the Fourth Proportional to 1,157.90, 1,737.13 and 336.18

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Solution

The fourth proportional to 1,157.90, 1,737.13 and 336.18 is: 504.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.90 : 1,737.13 = 336.18 : x
  2. Step 2: Convert to fraction form
    1,157.90/1,737.13 = 336.18/x
  3. Step 3: Cross multiply
    1,157.90x = 1,737.13 × 336.18
  4. Step 4: Simplify right side
    1,157.90x = 583,979.30
  5. Step 5: Solve for x
    x = 583,979.30/1,157.90
  6. Step 6: Final answer
    x = 504.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.